A couple of the cpan module have dependencies on libraries being installed
# Net::SSLeay
This is a sub-dependency of LWP::Protocol::https and requires 'libssl-dev' to
install.
On a debian/ubuntu machine this can be resolved by running:
sudo apt-get install libssl-dev
# XML::Parser
This is a sub-dependency of WebService::Simple and required 'libexpat-dev' to
install.
sudo apt-get install install libexpat-dev